drivers/net/wireless/ath/ath9k/ar9003_phy.c

   1 /*
   2  * Copyright (c) 2010-2011 Atheros Communications Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/export.h>
  18 #include "hw.h"
  19 #include "ar9003_phy.h"
  20
  21 static const int firstep_table[] =
  22 /* level:  0   1   2   3   4   5   6   7   8  */
  23         { -4, -2,  0,  2,  4,  6,  8, 10, 12 }; /* lvl 0-8, default 2 */
  24
  25 static const int cycpwrThr1_table[] =
  26 /* level:  0   1   2   3   4   5   6   7   8  */
  27         { -6, -4, -2,  0,  2,  4,  6,  8 };     /* lvl 0-7, default 3 */
  28
  29 /*
  30  * register values to turn OFDM weak signal detection OFF
  31  */
  32 static const int m1ThreshLow_off = 127;
  33 static const int m2ThreshLow_off = 127;
  34 static const int m1Thresh_off = 127;
  35 static const int m2Thresh_off = 127;
  36 static const int m2CountThr_off =  31;
  37 static const int m2CountThrLow_off =  63;
  38 static const int m1ThreshLowExt_off = 127;
  39 static const int m2ThreshLowExt_off = 127;
  40 static const int m1ThreshExt_off = 127;
  41 static const int m2ThreshExt_off = 127;
  42
  43 /**
  44  * ar9003_hw_set_channel - set channel on single-chip device
  45  * @ah: atheros hardware structure
  46  * @chan:
  47  *
  48  * This is the function to change channel on single-chip devices, that is
  49  * for AR9300 family of chipsets.
  50  *
  51  * This function takes the channel value in MHz and sets
  52  * hardware channel value. Assumes writes have been enabled to analog bus.
  53  *
  54  * Actual Expression,
  55  *
  56  * For 2GHz channel,
  57  * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  58  * (freq_ref = 40MHz)
  59  *
  60  * For 5GHz channel,
  61  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
  62  * (freq_ref = 40MHz/(24>>amodeRefSel))
  63  *
  64  * For 5GHz channels which are 5MHz spaced,
  65  * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
  66  * (freq_ref = 40MHz)
  67  */
  68 static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
  69 {
  70         u16 bMode, fracMode = 0, aModeRefSel = 0;
  71         u32 freq, channelSel = 0, reg32 = 0;
  72         struct chan_centers centers;
  73         int loadSynthChannel;
  74
  75         ath9k_hw_get_channel_centers(ah, chan, &centers);
  76         freq = centers.synth_center;
  77
  78         if (freq < 4800) {     /* 2 GHz, fractional mode */
  79                 if (AR_SREV_9330(ah)) {
  80                         u32 chan_frac;
  81                         u32 div;
  82
  83                         if (ah->is_clk_25mhz)
  84                                 div = 75;
  85                         else
  86                                 div = 120;
  87
  88                         channelSel = (freq * 4) / div;
  89                         chan_frac = (((freq * 4) % div) * 0x20000) / div;
  90                         channelSel = (channelSel << 17) | chan_frac;
  91                 } else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
  92                         u32 chan_frac;
  93
  94                         /*
  95                          * freq_ref = 40 / (refdiva >> amoderefsel); where refdiva=1 and amoderefsel=0
  96                          * ndiv = ((chan_mhz * 4) / 3) / freq_ref;
  97                          * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
  98                          */
  99                         channelSel = (freq * 4) / 120;
 100                         chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
 101                         channelSel = (channelSel << 17) | chan_frac;
 102                 } else if (AR_SREV_9340(ah) || AR_SREV_9550(ah)) {
 103                         if (ah->is_clk_25mhz) {
 104                                 u32 chan_frac;
 105
 106                                 channelSel = (freq * 2) / 75;
 107                                 chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
 108                                 channelSel = (channelSel << 17) | chan_frac;
 109                         } else
 110                                 channelSel = CHANSEL_2G(freq) >> 1;
 111                 } else
 112                         channelSel = CHANSEL_2G(freq);
 113                 /* Set to 2G mode */
 114                 bMode = 1;
 115         } else {
 116                 if ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) &&
 117                     ah->is_clk_25mhz) {
 118                         u32 chan_frac;
 119
 120                         channelSel = freq / 75;
 121                         chan_frac = ((freq % 75) * 0x20000) / 75;
 122                         channelSel = (channelSel << 17) | chan_frac;
 123                 } else {
 124                         channelSel = CHANSEL_5G(freq);
 125                         /* Doubler is ON, so, divide channelSel by 2. */
 126                         channelSel >>= 1;
 127                 }
 128                 /* Set to 5G mode */
 129                 bMode = 0;
 130         }
 131
 132         /* Enable fractional mode for all channels */
 133         fracMode = 1;
 134         aModeRefSel = 0;
 135         loadSynthChannel = 0;
 136
 137         reg32 = (bMode << 29);
 138         REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
 139
 140         /* Enable Long shift Select for Synthesizer */
 141         REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
 142                       AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
 143
 144         /* Program Synth. setting */
 145         reg32 = (channelSel << 2) | (fracMode << 30) |
 146                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 147         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 148
 149         /* Toggle Load Synth channel bit */
 150         loadSynthChannel = 1;
 151         reg32 = (channelSel << 2) | (fracMode << 30) |
 152                 (aModeRefSel << 28) | (loadSynthChannel << 31);
 153         REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
 154
 155         ah->curchan = chan;
 156
 157         return 0;
 158 }
 159
 160 /**
 161  * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
 162  * @ah: atheros hardware structure
 163  * @chan:
 164  *
 165  * For single-chip solutions. Converts to baseband spur frequency given the
 166  * input channel frequency and compute register settings below.
 167  *
 168  * Spur mitigation for MRC CCK
 169  */
 170 static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
 171                                             struct ath9k_channel *chan)
 172 {
 173         static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
 174         int cur_bb_spur, negative = 0, cck_spur_freq;
 175         int i;
 176         int range, max_spur_cnts, synth_freq;
 177         u8 *spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, IS_CHAN_2GHZ(chan));
 178
 179         /*
 180          * Need to verify range +/- 10 MHz in control channel, otherwise spur
 181          * is out-of-band and can be ignored.
 182          */
 183
 184         if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
 185             AR_SREV_9550(ah)) {
 186                 if (spur_fbin_ptr[0] == 0) /* No spur */
 187                         return;
 188                 max_spur_cnts = 5;
 189                 if (IS_CHAN_HT40(chan)) {
 190                         range = 19;
 191                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 192                                            AR_PHY_GC_DYN2040_PRI_CH) == 0)
 193                                 synth_freq = chan->channel + 10;
 194                         else
 195                                 synth_freq = chan->channel - 10;
 196                 } else {
 197                         range = 10;
 198                         synth_freq = chan->channel;
 199                 }
 200         } else {
 201                 range = AR_SREV_9462(ah) ? 5 : 10;
 202                 max_spur_cnts = 4;
 203                 synth_freq = chan->channel;
 204         }
 205
 206         for (i = 0; i < max_spur_cnts; i++) {
 207                 if (AR_SREV_9462(ah) && (i == 0 || i == 3))
 208                         continue;
 209
 210                 negative = 0;
 211                 if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
 212                     AR_SREV_9550(ah))
 213                         cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i],
 214                                                          IS_CHAN_2GHZ(chan));
 215                 else
 216                         cur_bb_spur = spur_freq[i];
 217
 218                 cur_bb_spur -= synth_freq;
 219                 if (cur_bb_spur < 0) {
 220                         negative = 1;
 221                         cur_bb_spur = -cur_bb_spur;
 222                 }
 223                 if (cur_bb_spur < range) {
 224                         cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
 225
 226                         if (negative == 1)
 227                                 cck_spur_freq = -cck_spur_freq;
 228
 229                         cck_spur_freq = cck_spur_freq & 0xfffff;
 230
 231                         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 232                                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
 233                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 234                                       AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
 235                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 236                                       AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
 237                                       0x2);
 238                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 239                                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
 240                                       0x1);
 241                         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 242                                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
 243                                       cck_spur_freq);
 244
 245                         return;
 246                 }
 247         }
 248
 249         REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
 250                       AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
 251         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 252                       AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
 253         REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
 254                       AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
 255 }
 256
 257 /* Clean all spur register fields */
 258 static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
 259 {
 260         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 261                       AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
 262         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 263                       AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
 264         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 265                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
 266         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 267                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
 268         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 269                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
 270         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 271                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
 272         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 273                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
 274         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 275                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
 276         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 277                       AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
 278
 279         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 280                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
 281         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 282                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
 283         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 284                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
 285         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 286                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
 287         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 288                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
 289         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 290                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
 291         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 292                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
 293         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 294                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
 295         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 296                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
 297         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 298                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
 299 }
 300
 301 static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
 302                                 int freq_offset,
 303                                 int spur_freq_sd,
 304                                 int spur_delta_phase,
 305                                 int spur_subchannel_sd,
 306                                 int range,
 307                                 int synth_freq)
 308 {
 309         int mask_index = 0;
 310
 311         /* OFDM Spur mitigation */
 312         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 313                  AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
 314         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 315                       AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
 316         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 317                       AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
 318         REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
 319                       AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
 320         REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 321                       AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
 322
 323         if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437))
 324                 REG_RMW_FIELD(ah, AR_PHY_TIMING11,
 325                               AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
 326
 327         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 328                       AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
 329         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 330                       AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
 331         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 332                       AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
 333
 334         if (REG_READ_FIELD(ah, AR_PHY_MODE,
 335                            AR_PHY_MODE_DYNAMIC) == 0x1)
 336                 REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 337                               AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
 338
 339         mask_index = (freq_offset << 4) / 5;
 340         if (mask_index < 0)
 341                 mask_index = mask_index - 1;
 342
 343         mask_index = mask_index & 0x7f;
 344
 345         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 346                       AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
 347         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 348                       AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
 349         REG_RMW_FIELD(ah, AR_PHY_TIMING4,
 350                       AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
 351         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 352                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
 353         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 354                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
 355         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 356                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
 357         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 358                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
 359         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 360                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
 361         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
 362                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 363         REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
 364                       AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
 365 }
 366
 367 static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah,
 368                                      int freq_offset)
 369 {
 370         int mask_index = 0;
 371
 372         mask_index = (freq_offset << 4) / 5;
 373         if (mask_index < 0)
 374                 mask_index = mask_index - 1;
 375
 376         mask_index = mask_index & 0x7f;
 377
 378         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 379                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B,
 380                       mask_index);
 381
 382         /* A == B */
 383         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
 384                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A,
 385                       mask_index);
 386
 387         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 388                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B,
 389                       mask_index);
 390         REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
 391                       AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe);
 392         REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
 393                       AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe);
 394
 395         /* A == B */
 396         REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
 397                       AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
 398 }
 399
 400 static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
 401                                      struct ath9k_channel *chan,
 402                                      int freq_offset,
 403                                      int range,
 404                                      int synth_freq)
 405 {
 406         int spur_freq_sd = 0;
 407         int spur_subchannel_sd = 0;
 408         int spur_delta_phase = 0;
 409
 410         if (IS_CHAN_HT40(chan)) {
 411                 if (freq_offset < 0) {
 412                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 413                                            AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 414                                 spur_subchannel_sd = 1;
 415                         else
 416                                 spur_subchannel_sd = 0;
 417
 418                         spur_freq_sd = ((freq_offset + 10) << 9) / 11;
 419
 420                 } else {
 421                         if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 422                             AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 423                                 spur_subchannel_sd = 0;
 424                         else
 425                                 spur_subchannel_sd = 1;
 426
 427                         spur_freq_sd = ((freq_offset - 10) << 9) / 11;
 428
 429                 }
 430
 431                 spur_delta_phase = (freq_offset << 17) / 5;
 432
 433         } else {
 434                 spur_subchannel_sd = 0;
 435                 spur_freq_sd = (freq_offset << 9) /11;
 436                 spur_delta_phase = (freq_offset << 18) / 5;
 437         }
 438
 439         spur_freq_sd = spur_freq_sd & 0x3ff;
 440         spur_delta_phase = spur_delta_phase & 0xfffff;
 441
 442         ar9003_hw_spur_ofdm(ah,
 443                             freq_offset,
 444                             spur_freq_sd,
 445                             spur_delta_phase,
 446                             spur_subchannel_sd,
 447                             range, synth_freq);
 448 }
 449
 450 /* Spur mitigation for OFDM */
 451 static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
 452                                          struct ath9k_channel *chan)
 453 {
 454         int synth_freq;
 455         int range = 10;
 456         int freq_offset = 0;
 457         int mode;
 458         u8* spurChansPtr;
 459         unsigned int i;
 460         struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;
 461
 462         if (IS_CHAN_5GHZ(chan)) {
 463                 spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
 464                 mode = 0;
 465         }
 466         else {
 467                 spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
 468                 mode = 1;
 469         }
 470
 471         if (spurChansPtr[0] == 0)
 472                 return; /* No spur in the mode */
 473
 474         if (IS_CHAN_HT40(chan)) {
 475                 range = 19;
 476                 if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
 477                                    AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
 478                         synth_freq = chan->channel - 10;
 479                 else
 480                         synth_freq = chan->channel + 10;
 481         } else {
 482                 range = 10;
 483                 synth_freq = chan->channel;
 484         }
 485
 486         ar9003_hw_spur_ofdm_clear(ah);
 487
 488         for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) {
 489                 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode);
 490                 freq_offset -= synth_freq;
 491                 if (abs(freq_offset) < range) {
 492                         ar9003_hw_spur_ofdm_work(ah, chan, freq_offset,
 493                                                  range, synth_freq);
 494
 495                         if (AR_SREV_9565(ah) && (i < 4)) {
 496                                 freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1],
 497                                                                  mode);
 498                                 freq_offset -= synth_freq;
 499                                 if (abs(freq_offset) < range)
 500                                         ar9003_hw_spur_ofdm_9565(ah, freq_offset);
 501                         }
 502
 503                         break;
 504                 }
 505         }
 506 }
 507
 508 static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
 509                                     struct ath9k_channel *chan)
 510 {
 511         if (!AR_SREV_9565(ah))
 512                 ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
 513         ar9003_hw_spur_mitigate_ofdm(ah, chan);
 514 }
 515
 516 static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
 517                                          struct ath9k_channel *chan)
 518 {
 519         u32 pll;
 520
 521         pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
 522
 523         if (chan && IS_CHAN_HALF_RATE(chan))
 524                 pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
 525         else if (chan && IS_CHAN_QUARTER_RATE(chan))
 526                 pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
 527
 528         pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
 529
 530         return pll;
 531 }
 532
 533 static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 534                                        struct ath9k_channel *chan)
 535 {
 536         u32 phymode;
 537         u32 enableDacFifo = 0;
 538
 539         enableDacFifo =
 540                 (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);
 541
 542         /* Enable 11n HT, 20 MHz */
 543         phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 |
 544                   AR_PHY_GC_SHORT_GI_40 | enableDacFifo;
 545
 546         /* Configure baseband for dynamic 20/40 operation */
 547         if (IS_CHAN_HT40(chan)) {
 548                 phymode |= AR_PHY_GC_DYN2040_EN;
 549                 /* Configure control (primary) channel at +-10MHz */
 550                 if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
 551                     (chan->chanmode == CHANNEL_G_HT40PLUS))
 552                         phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 553
 554         }
 555
 556         /* make sure we preserve INI settings */
 557         phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
 558         /* turn off Green Field detection for STA for now */
 559         phymode &= ~AR_PHY_GC_GF_DETECT_EN;
 560
 561         REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 562
 563         /* Configure MAC for 20/40 operation */
 564         ath9k_hw_set11nmac2040(ah);
 565
 566         /* global transmit timeout (25 TUs default)*/
 567         REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
 568         /* carrier sense timeout */
 569         REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
 570 }
 571
 572 static void ar9003_hw_init_bb(struct ath_hw *ah,
 573                               struct ath9k_channel *chan)
 574 {
 575         u32 synthDelay;
 576
 577         /*
 578          * Wait for the frequency synth to settle (synth goes on
 579          * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
 580          * Value is in 100ns increments.
 581          */
 582         synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 583
 584         /* Activate the PHY (includes baseband activate + synthesizer on) */
 585         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 586         ath9k_hw_synth_delay(ah, chan, synthDelay);
 587 }
 588
 589 static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
 590 {
 591         switch (rx) {
 592         case 0x5:
 593                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 594                             AR_PHY_SWAP_ALT_CHAIN);
 595         case 0x3:
 596         case 0x1:
 597         case 0x2:
 598         case 0x7:
 599                 REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
 600                 REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
 601                 break;
 602         default:
 603                 break;
 604         }
 605
 606         if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
 607                 REG_WRITE(ah, AR_SELFGEN_MASK, 0x3);
 608         else
 609                 REG_WRITE(ah, AR_SELFGEN_MASK, tx);
 610
 611         if (tx == 0x5) {
 612                 REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
 613                             AR_PHY_SWAP_ALT_CHAIN);
 614         }
 615 }
 616
 617 /*
 618  * Override INI values with chip specific configuration.
 619  */
 620 static void ar9003_hw_override_ini(struct ath_hw *ah)
 621 {
 622         u32 val;
 623
 624         /*
 625          * Set the RX_ABORT and RX_DIS and clear it only after
 626          * RXE is set for MAC. This prevents frames with
 627          * corrupted descriptor status.
 628          */
 629         REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 630
 631         /*
 632          * For AR9280 and above, there is a new feature that allows
 633          * Multicast search based on both MAC Address and Key ID. By default,
 634          * this feature is enabled. But since the driver is not using this
 635          * feature, we switch it off; otherwise multicast search based on
 636          * MAC addr only will fail.
 637          */
 638         val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
 639         REG_WRITE(ah, AR_PCU_MISC_MODE2,
 640                   val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
 641
 642         REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
 643                     AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
 644 }
 645
 646 static void ar9003_hw_prog_ini(struct ath_hw *ah,
 647                                struct ar5416IniArray *iniArr,
 648                                int column)
 649 {
 650         unsigned int i, regWrites = 0;
 651
 652         /* New INI format: Array may be undefined (pre, core, post arrays) */
 653         if (!iniArr->ia_array)
 654                 return;
 655
 656         /*
 657          * New INI format: Pre, core, and post arrays for a given subsystem
 658          * may be modal (> 2 columns) or non-modal (2 columns). Determine if
 659          * the array is non-modal and force the column to 1.
 660          */
 661         if (column >= iniArr->ia_columns)
 662                 column = 1;
 663
 664         for (i = 0; i < iniArr->ia_rows; i++) {
 665                 u32 reg = INI_RA(iniArr, i, 0);
 666                 u32 val = INI_RA(iniArr, i, column);
 667
 668                 REG_WRITE(ah, reg, val);
 669
 670                 DO_DELAY(regWrites);
 671         }
 672 }
 673
 674 static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
 675                                             struct ath9k_channel *chan)
 676 {
 677         int ret;
 678
 679         switch (chan->chanmode) {
 680         case CHANNEL_A:
 681         case CHANNEL_A_HT20:
 682                 if (chan->channel <= 5350)
 683                         ret = 1;
 684                 else if ((chan->channel > 5350) && (chan->channel <= 5600))
 685                         ret = 3;
 686                 else
 687                         ret = 5;
 688                 break;
 689
 690         case CHANNEL_A_HT40PLUS:
 691         case CHANNEL_A_HT40MINUS:
 692                 if (chan->channel <= 5350)
 693                         ret = 2;
 694                 else if ((chan->channel > 5350) && (chan->channel <= 5600))
 695                         ret = 4;
 696                 else
 697                         ret = 6;
 698                 break;
 699
 700         case CHANNEL_G:
 701         case CHANNEL_G_HT20:
 702         case CHANNEL_B:
 703                 ret = 8;
 704                 break;
 705
 706         case CHANNEL_G_HT40PLUS:
 707         case CHANNEL_G_HT40MINUS:
 708                 ret = 7;
 709                 break;
 710
 711         default:
 712                 ret = -EINVAL;
 713         }
 714
 715         return ret;
 716 }
 717
 718 static int ar9003_hw_process_ini(struct ath_hw *ah,
 719                                  struct ath9k_channel *chan)
 720 {
 721         unsigned int regWrites = 0, i;
 722         u32 modesIndex;
 723
 724         switch (chan->chanmode) {
 725         case CHANNEL_A:
 726         case CHANNEL_A_HT20:
 727                 modesIndex = 1;
 728                 break;
 729         case CHANNEL_A_HT40PLUS:
 730         case CHANNEL_A_HT40MINUS:
 731                 modesIndex = 2;
 732                 break;
 733         case CHANNEL_G:
 734         case CHANNEL_G_HT20:
 735         case CHANNEL_B:
 736                 modesIndex = 4;
 737                 break;
 738         case CHANNEL_G_HT40PLUS:
 739         case CHANNEL_G_HT40MINUS:
 740                 modesIndex = 3;
 741                 break;
 742
 743         default:
 744                 return -EINVAL;
 745         }
 746
 747         for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
 748                 ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
 749                 ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
 750                 ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
 751                 ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
 752                 if (i == ATH_INI_POST && AR_SREV_9462_20(ah))
 753                         ar9003_hw_prog_ini(ah,
 754                                            &ah->ini_radio_post_sys2ant,
 755                                            modesIndex);
 756         }
 757
 758         REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
 759         if (AR_SREV_9550(ah))
 760                 REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex,
 761                                 regWrites);
 762
 763         if (AR_SREV_9550(ah)) {
 764                 int modes_txgain_index;
 765
 766                 modes_txgain_index = ar9550_hw_get_modes_txgain_index(ah, chan);
 767                 if (modes_txgain_index < 0)
 768                         return -EINVAL;
 769
 770                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modes_txgain_index,
 771                                 regWrites);
 772         } else {
 773                 REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
 774         }
 775
 776         /*
 777          * For 5GHz channels requiring Fast Clock, apply
 778          * different modal values.
 779          */
 780         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 781                 REG_WRITE_ARRAY(&ah->iniModesFastClock,
 782                                 modesIndex, regWrites);
 783
 784         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
 785
 786         if (chan->channel == 2484)
 787                 ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);
 788
 789         if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
 790                 REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
 791                           AR_GLB_SWREG_DISCONT_EN_BT_WLAN);
 792
 793         ah->modes_index = modesIndex;
 794         ar9003_hw_override_ini(ah);
 795         ar9003_hw_set_channel_regs(ah, chan);
 796         ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
 797         ath9k_hw_apply_txpower(ah, chan, false);
 798
 799         if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 800                 if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
 801                                    AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
 802                         ah->enabled_cals |= TX_IQ_CAL;
 803                 else
 804                         ah->enabled_cals &= ~TX_IQ_CAL;
 805
 806                 if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
 807                         ah->enabled_cals |= TX_CL_CAL;
 808                 else
 809                         ah->enabled_cals &= ~TX_CL_CAL;
 810         }
 811
 812         return 0;
 813 }
 814
 815 static void ar9003_hw_set_rfmode(struct ath_hw *ah,
 816                                  struct ath9k_channel *chan)
 817 {
 818         u32 rfMode = 0;
 819
 820         if (chan == NULL)
 821                 return;
 822
 823         rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
 824                 ? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
 825
 826         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 827                 rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
 828         if (IS_CHAN_QUARTER_RATE(chan))
 829                 rfMode |= AR_PHY_MODE_QUARTER;
 830         if (IS_CHAN_HALF_RATE(chan))
 831                 rfMode |= AR_PHY_MODE_HALF;
 832
 833         if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF))
 834                 REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
 835                               AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3);
 836
 837         REG_WRITE(ah, AR_PHY_MODE, rfMode);
 838 }
 839
 840 static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
 841 {
 842         REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
 843 }
 844
 845 static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
 846                                       struct ath9k_channel *chan)
 847 {
 848         u32 coef_scaled, ds_coef_exp, ds_coef_man;
 849         u32 clockMhzScaled = 0x64000000;
 850         struct chan_centers centers;
 851
 852         /*
 853          * half and quarter rate can divide the scaled clock by 2 or 4
 854          * scale for selected channel bandwidth
 855          */
 856         if (IS_CHAN_HALF_RATE(chan))
 857                 clockMhzScaled = clockMhzScaled >> 1;
 858         else if (IS_CHAN_QUARTER_RATE(chan))
 859                 clockMhzScaled = clockMhzScaled >> 2;
 860
 861         /*
 862          * ALGO -> coef = 1e8/fcarrier*fclock/40;
 863          * scaled coef to provide precision for this floating calculation
 864          */
 865         ath9k_hw_get_channel_centers(ah, chan, &centers);
 866         coef_scaled = clockMhzScaled / centers.synth_center;
 867
 868         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 869                                       &ds_coef_exp);
 870
 871         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 872                       AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
 873         REG_RMW_FIELD(ah, AR_PHY_TIMING3,
 874                       AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
 875
 876         /*
 877          * For Short GI,
 878          * scaled coeff is 9/10 that of normal coeff
 879          */
 880         coef_scaled = (9 * coef_scaled) / 10;
 881
 882         ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
 883                                       &ds_coef_exp);
 884
 885         /* for short gi */
 886         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 887                       AR_PHY_SGI_DSC_MAN, ds_coef_man);
 888         REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
 889                       AR_PHY_SGI_DSC_EXP, ds_coef_exp);
 890 }
 891
 892 static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
 893 {
 894         REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
 895         return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
 896                              AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
 897 }
 898
 899 /*
 900  * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 901  * Read the phy active delay register. Value is in 100ns increments.
 902  */
 903 static void ar9003_hw_rfbus_done(struct ath_hw *ah)
 904 {
 905         u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
 906
 907         ath9k_hw_synth_delay(ah, ah->curchan, synthDelay);
 908
 909         REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
 910 }
 911
 912 static bool ar9003_hw_ani_control(struct ath_hw *ah,
 913                                   enum ath9k_ani_cmd cmd, int param)
 914 {
 915         struct ath_common *common = ath9k_hw_common(ah);
 916         struct ath9k_channel *chan = ah->curchan;
 917         struct ar5416AniState *aniState = &chan->ani;
 918         s32 value, value2;
 919
 920         switch (cmd & ah->ani_function) {
 921         case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
 922                 /*
 923                  * on == 1 means ofdm weak signal detection is ON
 924                  * on == 1 is the default, for less noise immunity
 925                  *
 926                  * on == 0 means ofdm weak signal detection is OFF
 927                  * on == 0 means more noise imm
 928                  */
 929                 u32 on = param ? 1 : 0;
 930
 931                 if (on)
 932                         REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
 933                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 934                 else
 935                         REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
 936                                     AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
 937
 938                 if (on != aniState->ofdmWeakSigDetect) {
 939                         ath_dbg(common, ANI,
 940                                 "** ch %d: ofdm weak signal: %s=>%s\n",
 941                                 chan->channel,
 942                                 aniState->ofdmWeakSigDetect ?
 943                                 "on" : "off",
 944                                 on ? "on" : "off");
 945                         if (on)
 946                                 ah->stats.ast_ani_ofdmon++;
 947                         else
 948                                 ah->stats.ast_ani_ofdmoff++;
 949                         aniState->ofdmWeakSigDetect = on;
 950                 }
 951                 break;
 952         }
 953         case ATH9K_ANI_FIRSTEP_LEVEL:{
 954                 u32 level = param;
 955
 956                 if (level >= ARRAY_SIZE(firstep_table)) {
 957                         ath_dbg(common, ANI,
 958                                 "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n",
 959                                 level, ARRAY_SIZE(firstep_table));
 960                         return false;
 961                 }
 962
 963                 /*
 964                  * make register setting relative to default
 965                  * from INI file & cap value
 966                  */
 967                 value = firstep_table[level] -
 968                         firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
 969                         aniState->iniDef.firstep;
 970                 if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 971                         value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 972                 if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 973                         value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 974                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
 975                               AR_PHY_FIND_SIG_FIRSTEP,
 976                               value);
 977                 /*
 978                  * we need to set first step low register too
 979                  * make register setting relative to default
 980                  * from INI file & cap value
 981                  */
 982                 value2 = firstep_table[level] -
 983                          firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
 984                          aniState->iniDef.firstepLow;
 985                 if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
 986                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
 987                 if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
 988                         value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;
 989
 990                 REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
 991                               AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW, value2);
 992
 993                 if (level != aniState->firstepLevel) {
 994                         ath_dbg(common, ANI,
 995                                 "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
 996                                 chan->channel,
 997                                 aniState->firstepLevel,
 998                                 level,
 999                                 ATH9K_ANI_FIRSTEP_LVL,
1000                                 value,
1001                                 aniState->iniDef.firstep);
1002                         ath_dbg(common, ANI,
1003                                 "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
1004                                 chan->channel,
1005                                 aniState->firstepLevel,
1006                                 level,
1007                                 ATH9K_ANI_FIRSTEP_LVL,
1008                                 value2,
1009                                 aniState->iniDef.firstepLow);
1010                         if (level > aniState->firstepLevel)
1011                                 ah->stats.ast_ani_stepup++;
1012                         else if (level < aniState->firstepLevel)
1013                                 ah->stats.ast_ani_stepdown++;
1014                         aniState->firstepLevel = level;
1015                 }
1016                 break;
1017         }
1018         case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
1019                 u32 level = param;
1020
1021                 if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
1022                         ath_dbg(common, ANI,
1023                                 "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n",
1024                                 level, ARRAY_SIZE(cycpwrThr1_table));
1025                         return false;
1026                 }
1027                 /*
1028                  * make register setting relative to default
1029                  * from INI file & cap value
1030                  */
1031                 value = cycpwrThr1_table[level] -
1032                         cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1033                         aniState->iniDef.cycpwrThr1;
1034                 if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1035                         value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1036                 if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1037                         value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1038                 REG_RMW_FIELD(ah, AR_PHY_TIMING5,
1039                               AR_PHY_TIMING5_CYCPWR_THR1,
1040                               value);
1041
1042                 /*
1043                  * set AR_PHY_EXT_CCA for extension channel
1044                  * make register setting relative to default
1045                  * from INI file & cap value
1046                  */
1047                 value2 = cycpwrThr1_table[level] -
1048                          cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
1049                          aniState->iniDef.cycpwrThr1Ext;
1050                 if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
1051                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
1052                 if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
1053                         value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
1054                 REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
1055                               AR_PHY_EXT_CYCPWR_THR1, value2);
1056
1057                 if (level != aniState->spurImmunityLevel) {
1058                         ath_dbg(common, ANI,
1059                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
1060                                 chan->channel,
1061                                 aniState->spurImmunityLevel,
1062                                 level,
1063                                 ATH9K_ANI_SPUR_IMMUNE_LVL,
1064                                 value,
1065                                 aniState->iniDef.cycpwrThr1);
1066                         ath_dbg(common, ANI,
1067                                 "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
1068                                 chan->channel,
1069                                 aniState->spurImmunityLevel,
1070                                 level,
1071                                 ATH9K_ANI_SPUR_IMMUNE_LVL,
1072                                 value2,
1073                                 aniState->iniDef.cycpwrThr1Ext);
1074                         if (level > aniState->spurImmunityLevel)
1075                                 ah->stats.ast_ani_spurup++;
1076                         else if (level < aniState->spurImmunityLevel)
1077                                 ah->stats.ast_ani_spurdown++;
1078                         aniState->spurImmunityLevel = level;
1079                 }
1080                 break;
1081         }
1082         case ATH9K_ANI_MRC_CCK:{
1083                 /*
1084                  * is_on == 1 means MRC CCK ON (default, less noise imm)
1085                  * is_on == 0 means MRC CCK is OFF (more noise imm)
1086                  */
1087                 bool is_on = param ? 1 : 0;
1088                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1089                               AR_PHY_MRC_CCK_ENABLE, is_on);
1090                 REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
1091                               AR_PHY_MRC_CCK_MUX_REG, is_on);
1092                 if (is_on != aniState->mrcCCK) {
1093                         ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n",
1094                                 chan->channel,
1095                                 aniState->mrcCCK ? "on" : "off",
1096                                 is_on ? "on" : "off");
1097                 if (is_on)
1098                         ah->stats.ast_ani_ccklow++;
1099                 else
1100                         ah->stats.ast_ani_cckhigh++;
1101                 aniState->mrcCCK = is_on;
1102                 }
1103         break;
1104         }
1105         case ATH9K_ANI_PRESENT:
1106                 break;
1107         default:
1108                 ath_dbg(common, ANI, "invalid cmd %u\n", cmd);
1109                 return false;
1110         }
1111
1112         ath_dbg(common, ANI,
1113                 "ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n",
1114                 aniState->spurImmunityLevel,
1115                 aniState->ofdmWeakSigDetect ? "on" : "off",
1116                 aniState->firstepLevel,
1117                 aniState->mrcCCK ? "on" : "off",
1118                 aniState->listenTime,
1119                 aniState->ofdmPhyErrCount,
1120                 aniState->cckPhyErrCount);
1121         return true;
1122 }
1123
1124 static void ar9003_hw_do_getnf(struct ath_hw *ah,
1125                               int16_t nfarray[NUM_NF_READINGS])
1126 {
1127 #define AR_PHY_CH_MINCCA_PWR    0x1FF00000
1128 #define AR_PHY_CH_MINCCA_PWR_S  20
1129 #define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
1130 #define AR_PHY_CH_EXT_MINCCA_PWR_S 16
1131
1132         int16_t nf;
1133         int i;
1134
1135         for (i = 0; i < AR9300_MAX_CHAINS; i++) {
1136                 if (ah->rxchainmask & BIT(i)) {
1137                         nf = MS(REG_READ(ah, ah->nf_regs[i]),
1138                                          AR_PHY_CH_MINCCA_PWR);
1139                         nfarray[i] = sign_extend32(nf, 8);
1140
1141                         if (IS_CHAN_HT40(ah->curchan)) {
1142                                 u8 ext_idx = AR9300_MAX_CHAINS + i;
1143
1144                                 nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
1145                                                  AR_PHY_CH_EXT_MINCCA_PWR);
1146                                 nfarray[ext_idx] = sign_extend32(nf, 8);
1147                         }
1148                 }
1149         }
1150 }
1151
1152 static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
1153 {
1154         ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
1155         ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
1156         ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
1157         ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
1158         ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
1159         ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
1160
1161         if (AR_SREV_9330(ah))
1162                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
1163
1164         if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
1165                 ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
1166                 ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
1167                 ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
1168                 ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ;
1169         }
1170 }
1171
1172 /*
1173  * Initialize the ANI register values with default (ini) values.
1174  * This routine is called during a (full) hardware reset after
1175  * all the registers are initialised from the INI.
1176  */
1177 static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
1178 {
1179         struct ar5416AniState *aniState;
1180         struct ath_common *common = ath9k_hw_common(ah);
1181         struct ath9k_channel *chan = ah->curchan;
1182         struct ath9k_ani_default *iniDef;
1183         u32 val;
1184
1185         aniState = &ah->curchan->ani;
1186         iniDef = &aniState->iniDef;
1187
1188         ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
1189                 ah->hw_version.macVersion,
1190                 ah->hw_version.macRev,
1191                 ah->opmode,
1192                 chan->channel,
1193                 chan->channelFlags);
1194
1195         val = REG_READ(ah, AR_PHY_SFCORR);
1196         iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
1197         iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
1198         iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);
1199
1200         val = REG_READ(ah, AR_PHY_SFCORR_LOW);
1201         iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
1202         iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
1203         iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);
1204
1205         val = REG_READ(ah, AR_PHY_SFCORR_EXT);
1206         iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
1207         iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
1208         iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
1209         iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
1210         iniDef->firstep = REG_READ_FIELD(ah,
1211                                          AR_PHY_FIND_SIG,
1212                                          AR_PHY_FIND_SIG_FIRSTEP);
1213         iniDef->firstepLow = REG_READ_FIELD(ah,
1214                                             AR_PHY_FIND_SIG_LOW,
1215                                             AR_PHY_FIND_SIG_LOW_FIRSTEP_LOW);
1216         iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
1217                                             AR_PHY_TIMING5,
1218                                             AR_PHY_TIMING5_CYCPWR_THR1);
1219         iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
1220                                                AR_PHY_EXT_CCA,
1221                                                AR_PHY_EXT_CYCPWR_THR1);
1222
1223         /* these levels just got reset to defaults by the INI */
1224         aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
1225         aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
1226         aniState->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
1227         aniState->mrcCCK = true;
1228 }
1229
1230 static void ar9003_hw_set_radar_params(struct ath_hw *ah,
1231                                        struct ath_hw_radar_conf *conf)
1232 {
1233         u32 radar_0 = 0, radar_1 = 0;
1234
1235         if (!conf) {
1236                 REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
1237                 return;
1238         }
1239
1240         radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
1241         radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
1242         radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
1243         radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
1244         radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
1245         radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);
1246
1247         radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
1248         radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
1249         radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
1250         radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
1251         radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);
1252
1253         REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
1254         REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
1255         if (conf->ext_channel)
1256                 REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1257         else
1258                 REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
1259 }
1260
1261 static void ar9003_hw_set_radar_conf(struct ath_hw *ah)
1262 {
1263         struct ath_hw_radar_conf *conf = &ah->radar_conf;
1264
1265         conf->fir_power = -28;
1266         conf->radar_rssi = 0;
1267         conf->pulse_height = 10;
1268         conf->pulse_rssi = 24;
1269         conf->pulse_inband = 8;
1270         conf->pulse_maxlen = 255;
1271         conf->pulse_inband_step = 12;
1272         conf->radar_inband = 8;
1273 }
1274
1275 static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
1276                                            struct ath_hw_antcomb_conf *antconf)
1277 {
1278         u32 regval;
1279
1280         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1281         antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >>
1282                                   AR_PHY_ANT_DIV_MAIN_LNACONF_S;
1283         antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >>
1284                                  AR_PHY_ANT_DIV_ALT_LNACONF_S;
1285         antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >>
1286                                   AR_PHY_ANT_FAST_DIV_BIAS_S;
1287
1288         if (AR_SREV_9330_11(ah)) {
1289                 antconf->lna1_lna2_delta = -9;
1290                 antconf->div_group = 1;
1291         } else if (AR_SREV_9485(ah)) {
1292                 antconf->lna1_lna2_delta = -9;
1293                 antconf->div_group = 2;
1294         } else if (AR_SREV_9565(ah)) {
1295                 antconf->lna1_lna2_delta = -3;
1296                 antconf->div_group = 3;
1297         } else {
1298                 antconf->lna1_lna2_delta = -3;
1299                 antconf->div_group = 0;
1300         }
1301 }
1302
1303 static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
1304                                    struct ath_hw_antcomb_conf *antconf)
1305 {
1306         u32 regval;
1307
1308         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1309         regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1310                     AR_PHY_ANT_DIV_ALT_LNACONF |
1311                     AR_PHY_ANT_FAST_DIV_BIAS |
1312                     AR_PHY_ANT_DIV_MAIN_GAINTB |
1313                     AR_PHY_ANT_DIV_ALT_GAINTB);
1314         regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S)
1315                    & AR_PHY_ANT_DIV_MAIN_LNACONF);
1316         regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S)
1317                    & AR_PHY_ANT_DIV_ALT_LNACONF);
1318         regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S)
1319                    & AR_PHY_ANT_FAST_DIV_BIAS);
1320         regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S)
1321                    & AR_PHY_ANT_DIV_MAIN_GAINTB);
1322         regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S)
1323                    & AR_PHY_ANT_DIV_ALT_GAINTB);
1324
1325         REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1326 }
1327
1328 static void ar9003_hw_antctrl_shared_chain_lnadiv(struct ath_hw *ah,
1329                                                   bool enable)
1330 {
1331         u8 ant_div_ctl1;
1332         u32 regval;
1333
1334         if (!AR_SREV_9565(ah))
1335                 return;
1336
1337         ah->shared_chain_lnadiv = enable;
1338         ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);
1339
1340         regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1341         regval &= (~AR_ANT_DIV_CTRL_ALL);
1342         regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
1343         regval &= ~AR_PHY_ANT_DIV_LNADIV;
1344         regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
1345
1346         if (enable)
1347                 regval |= AR_ANT_DIV_ENABLE;
1348
1349         REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1350
1351         regval = REG_READ(ah, AR_PHY_CCK_DETECT);
1352         regval &= ~AR_FAST_DIV_ENABLE;
1353         regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
1354
1355         if (enable)
1356                 regval |= AR_FAST_DIV_ENABLE;
1357
1358         REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
1359
1360         if (enable) {
1361                 REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1362                             (1 << AR_PHY_ANT_SW_RX_PROT_S));
1363                 if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
1364                         REG_SET_BIT(ah, AR_PHY_RESTART,
1365                                     AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
1366                 REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
1367                             AR_BTCOEX_WL_LNADIV_FORCE_ON);
1368         } else {
1369                 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
1370                 REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
1371                             (1 << AR_PHY_ANT_SW_RX_PROT_S));
1372                 REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
1373                 REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
1374                             AR_BTCOEX_WL_LNADIV_FORCE_ON);
1375
1376                 regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
1377                 regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
1378                         AR_PHY_ANT_DIV_ALT_LNACONF |
1379                         AR_PHY_ANT_DIV_MAIN_GAINTB |
1380                         AR_PHY_ANT_DIV_ALT_GAINTB);
1381                 regval |= (AR_PHY_ANT_DIV_LNA1 << AR_PHY_ANT_DIV_MAIN_LNACONF_S);
1382                 regval |= (AR_PHY_ANT_DIV_LNA2 << AR_PHY_ANT_DIV_ALT_LNACONF_S);
1383                 REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
1384         }
1385 }
1386
1387 static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
1388                                       struct ath9k_channel *chan,
1389                                       u8 *ini_reloaded)
1390 {
1391         unsigned int regWrites = 0;
1392         u32 modesIndex;
1393
1394         switch (chan->chanmode) {
1395         case CHANNEL_A:
1396         case CHANNEL_A_HT20:
1397                 modesIndex = 1;
1398                 break;
1399         case CHANNEL_A_HT40PLUS:
1400         case CHANNEL_A_HT40MINUS:
1401                 modesIndex = 2;
1402                 break;
1403         case CHANNEL_G:
1404         case CHANNEL_G_HT20:
1405         case CHANNEL_B:
1406                 modesIndex = 4;
1407                 break;
1408         case CHANNEL_G_HT40PLUS:
1409         case CHANNEL_G_HT40MINUS:
1410                 modesIndex = 3;
1411                 break;
1412
1413         default:
1414                 return -EINVAL;
1415         }
1416
1417         if (modesIndex == ah->modes_index) {
1418                 *ini_reloaded = false;
1419                 goto set_rfmode;
1420         }
1421
1422         ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex);
1423         ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
1424         ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
1425         ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);
1426
1427         if (AR_SREV_9462_20(ah))
1428                 ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
1429                                    modesIndex);
1430
1431         REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
1432
1433         /*
1434          * For 5GHz channels requiring Fast Clock, apply
1435          * different modal values.
1436          */
1437         if (IS_CHAN_A_FAST_CLOCK(ah, chan))
1438                 REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);
1439
1440         if (AR_SREV_9565(ah))
1441                 REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites);
1442
1443         REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);
1444
1445         ah->modes_index = modesIndex;
1446         *ini_reloaded = true;
1447
1448 set_rfmode:
1449         ar9003_hw_set_rfmode(ah, chan);
1450         return 0;
1451 }
1452
1453 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
1454 {
1455         struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
1456         struct ath_hw_ops *ops = ath9k_hw_ops(ah);
1457         static const u32 ar9300_cca_regs[6] = {
1458                 AR_PHY_CCA_0,
1459                 AR_PHY_CCA_1,
1460                 AR_PHY_CCA_2,
1461                 AR_PHY_EXT_CCA,
1462                 AR_PHY_EXT_CCA_1,
1463                 AR_PHY_EXT_CCA_2,
1464         };
1465
1466         priv_ops->rf_set_freq = ar9003_hw_set_channel;
1467         priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
1468         priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
1469         priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
1470         priv_ops->init_bb = ar9003_hw_init_bb;
1471         priv_ops->process_ini = ar9003_hw_process_ini;
1472         priv_ops->set_rfmode = ar9003_hw_set_rfmode;
1473         priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
1474         priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
1475         priv_ops->rfbus_req = ar9003_hw_rfbus_req;
1476         priv_ops->rfbus_done = ar9003_hw_rfbus_done;
1477         priv_ops->ani_control = ar9003_hw_ani_control;
1478         priv_ops->do_getnf = ar9003_hw_do_getnf;
1479         priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
1480         priv_ops->set_radar_params = ar9003_hw_set_radar_params;
1481         priv_ops->fast_chan_change = ar9003_hw_fast_chan_change;
1482
1483         ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
1484         ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
1485         ops->antctrl_shared_chain_lnadiv = ar9003_hw_antctrl_shared_chain_lnadiv;
1486
1487         ar9003_hw_set_nf_limits(ah);
1488         ar9003_hw_set_radar_conf(ah);
1489         memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
1490 }
1491
1492 void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
1493 {
1494         struct ath_common *common = ath9k_hw_common(ah);
1495         u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
1496         u32 val, idle_count;
1497
1498         if (!idle_tmo_ms) {
1499                 /* disable IRQ, disable chip-reset for BB panic */
1500                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1501                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
1502                           ~(AR_PHY_WATCHDOG_RST_ENABLE |
1503                             AR_PHY_WATCHDOG_IRQ_ENABLE));
1504
1505                 /* disable watchdog in non-IDLE mode, disable in IDLE mode */
1506                 REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1507                           REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
1508                           ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1509                             AR_PHY_WATCHDOG_IDLE_ENABLE));
1510
1511                 ath_dbg(common, RESET, "Disabled BB Watchdog\n");
1512                 return;
1513         }
1514
1515         /* enable IRQ, disable chip-reset for BB watchdog */
1516         val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
1517         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
1518                   (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
1519                   ~AR_PHY_WATCHDOG_RST_ENABLE);
1520
1521         /* bound limit to 10 secs */
1522         if (idle_tmo_ms > 10000)
1523                 idle_tmo_ms = 10000;
1524
1525         /*
1526          * The time unit for watchdog event is 2^15 44/88MHz cycles.
1527          *
1528          * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
1529          * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
1530          *
1531          * Given we use fast clock now in 5 GHz, these time units should
1532          * be common for both 2 GHz and 5 GHz.
1533          */
1534         idle_count = (100 * idle_tmo_ms) / 74;
1535         if (ah->curchan && IS_CHAN_HT40(ah->curchan))
1536                 idle_count = (100 * idle_tmo_ms) / 37;
1537
1538         /*
1539          * enable watchdog in non-IDLE mode, disable in IDLE mode,
1540          * set idle time-out.
1541          */
1542         REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
1543                   AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
1544                   AR_PHY_WATCHDOG_IDLE_MASK |
1545                   (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));
1546
1547         ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n",
1548                 idle_tmo_ms);
1549 }
1550
1551 void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
1552 {
1553         /*
1554          * we want to avoid printing in ISR context so we save the
1555          * watchdog status to be printed later in bottom half context.
1556          */
1557         ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);
1558
1559         /*
1560          * the watchdog timer should reset on status read but to be sure
1561          * sure we write 0 to the watchdog status bit.
1562          */
1563         REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
1564                   ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
1565 }
1566
1567 void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
1568 {
1569         struct ath_common *common = ath9k_hw_common(ah);
1570         u32 status;
1571
1572         if (likely(!(common->debug_mask & ATH_DBG_RESET)))
1573                 return;
1574
1575         status = ah->bb_watchdog_last_status;
1576         ath_dbg(common, RESET,
1577                 "\n==== BB update: BB status=0x%08x ====\n", status);
1578         ath_dbg(common, RESET,
1579                 "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
1580                 MS(status, AR_PHY_WATCHDOG_INFO),
1581                 MS(status, AR_PHY_WATCHDOG_DET_HANG),
1582                 MS(status, AR_PHY_WATCHDOG_RADAR_SM),
1583                 MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
1584                 MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
1585                 MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
1586                 MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
1587                 MS(status, AR_PHY_WATCHDOG_AGC_SM),
1588                 MS(status, AR_PHY_WATCHDOG_SRCH_SM));
1589
1590         ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
1591                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
1592                 REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
1593         ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n",
1594                 REG_READ(ah, AR_PHY_GEN_CTRL));
1595
1596 #define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
1597         if (common->cc_survey.cycles)
1598                 ath_dbg(common, RESET,
1599                         "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n",
1600                         PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));
1601
1602         ath_dbg(common, RESET, "==== BB update: done ====\n\n");
1603 }
1604 EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
1605
1606 void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
1607 {
1608         u32 val;
1609
1610         /* While receiving unsupported rate frame rx state machine
1611          * gets into a state 0xb and if phy_restart happens in that
1612          * state, BB would go hang. If RXSM is in 0xb state after
1613          * first bb panic, ensure to disable the phy_restart.
1614          */
1615         if (!((MS(ah->bb_watchdog_last_status,
1616                   AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
1617             ah->bb_hang_rx_ofdm))
1618                 return;
1619
1620         ah->bb_hang_rx_ofdm = true;
1621         val = REG_READ(ah, AR_PHY_RESTART);
1622         val &= ~AR_PHY_RESTART_ENA;
1623
1624         REG_WRITE(ah, AR_PHY_RESTART, val);
1625 }
1626 EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);